TY - RPRT TI - Unravelling the complexity of magma plumbing at Mount St. Helens: A new trace element partitioning scheme for amphibole AU - Madeleine C. S. Humphreys AU - George F. Cooper AU - Jing Zhang AU - Matthew W. Loewen AU - Adam J. R. Kent AU - Colin G. Macpherson AU - Jon P. Davidson PY - 2019 DO - 10.1007/s00410-018-1543-5 UR - https://pubs.usgs.gov/publication/70202242 ID - 70202242 ER -